Features and Benefits
- Single Supply 5V Operation
- Power Shutdown After Each Conversion (LTC1297)
- Built-In Sample-and-Hold
- 60kHz Maximum Throughput Rate (LTC1292)
- Direct 3-Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports
- Analog Inputs Common Mode to Supply Rails
The LTC1292/LTC1297 are data acquisition systems that contain a 12-bit, switched-capacitor successive approximation A/D, a differential input, sample-and-hold on the (+) input, and serial I/O. When the LTC1297 is idle between conversions it automatically powers down reducing the supply current to 5µA, typically. The LTC1292 is capable of digitizing signals at a 60kHz rate and with the device’s excellent AC characteristics, it can be used for DSP applications. All these features are packaged in an 8-pin DIP and are made possible using LTCMOS™ switched-capacitor technology.
The serial I/O is designed to communicate without external hardware to most MPU serial ports and all MPU parallel I/O ports allowing data to be transmitted over three wires. Because of their accuracy, ease of use and small package size these devices are well suited for digitizing analog signals in remote applications where minimum number of interconnects and power consumption are important.
- Resolution: 12 Bits
- Fast Conversion Time: 12µs Max Over Temp
- Low Supply Current: 6.0mA
- Shutdown Supply Current: 5µA (LTC1297)
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
LTC1297 Companion Parts
Recommended µModule Isolator
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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